Water-cooled door-frame for furnaces.



\ j PATBNTED JUNE 26,1906. Li- Knox;

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Lann i l rlp ll l UNITED STATES LUTHER L. KNOX, OF PIT'lSB URG, v FOURTH TO MONT lVlURRAY AN OFjPITTSBURG, PENNSYLVANIA.

No. 824,184, Application filed Ma 23,

T allwhom it may concern.- I

, Be it known that. I, LUTHER L. KNOX, of Pittsburg, Allegheny county, Pennsylvania, have invented a new and useful Water-Cooled D0orFrame for Furnaces, of which the,fol-

had "to the accompanying part of this specification, hichaway, showing the preferred formof mydoor- 'am'e, F g. 2 1s a vert cal central sectlon'of the same. Fig. 3 1s a top plan VleW; Fig. 4

v1s'a cross-section on the irregular line IV IV of Fig, 1. Fig. 5 is a front elevation showing the frame-body. Fig. 6 is the frame-body F the line Vll VII of ign7 is a cross-section on Fig. 5.

elevation of the lintel-hasting, and Fig; 9 is a lintel 1s sub ected. both to the top plan view of the water-lintel.

' y invention relates to the class of water-, cooled door-frames for furnaces, and isd'eigned to provide a frame in which the lintel may be removed and replaced without removing the frame proper.

Heretofore in water-cooled door-frames the lintel or portion crossing the top of the opening has been formed as an integral part of the frame, and the entire frame must be thrown away when the lintel was burned out; This greatest,heat

and to the largest amount of al rasiveaction during charging of the furnace, and hence Wears out rapidly.

this diiliculty and provides at er cooled lintel which may be re1n(')ved"-1in(l replacml when injured without changingthebody of the frame continuous operation (lithe furnace.

The invention also prm ides for a water connection between the remdvable lintel and the door-frame proper, so that the same wa t'er circulates through the lintel and the door Inthe drawings I have ings. The frame and-6) is provided 0 9 proper -(showilI in Figs. 5 with vertical leg portions which are widened out in their l(') wer portions and provided with vertically-extending ogs or shoulders 3 8, which guide the door in its vertical movements. These-guide por- Specification of Lette rs Patent.

and exact description,

Figure 1' is ,a front elevation, partlybro ken' a topplanyiew of Fig. 8 is a front h ly: invention' overcomes and without interfering with the shown the frameas' made in two parts, preferably of bronze cast-1 ATEN OFFICE. PENNSYLVANIA, Assumes or ONE- D [ONE-FOURTH To 11. a. warsnorr,

' WATER-COOLED noon-FRAME FOR FURNACES.

Eatented June 26, 1906. 1904. Serial No. 209,198.

tions extendupwardly from the bottom of the legs to the level a, a, where there is a horizontal shoulder 4, extending sidewise to the vertical line of baflie 10 and the projecting lugs-5, to which the lintel-cheeks are secured. "The lower portion of the frameleg is of the same depth as the outer upper portion, and from the 'ertical line of the lugs 5 thedepth'is decreased to form arecess- 6, which extends'vertically between the lugs 5 and the intermediate cross portion 7 of the frame. These recesses extend down to the. level of the ledge 4 and receive the cheeksS of the hollow lintel 9. (Shown in Figs. 8 a11d9.).'

lhe-side legs of the frame are provided with vertical iartitirms or baffles 10, which extend fromt he top of the door down to a pointnear the lower ends of the hollow legs. From the level a a up to the lower corner of the body portion 7 a narrow inclosed channel 1].is provided, which connects theleg withthe hollow body 7, the inner wall l2of this channel terminating at thelower corner of the body 7. The lower edge of the body 7 is preferably curved inoutline, and. the upper edge ofthe lintel 9' is correspondingly curved to :fit under and against it, This prevents, the formation of a steam-pocket in the hollow lintel, since any bubbles of steam will creep along the inclined roof of this lintel and flow out with the water and escape at the open tops of the legs 8 S. The hollow legs 8 project forwardly from the lintel-body and are ro vided with forwardly-projecting lugs 13, which register with the .lu gs 5 of the framebody' when the parts are slipped together. "lhcse leg portions iit in the recesses 6, and when the lugs are bolted: together the parts willbe in the position shown in Figs, 1 to 4-, inclusive a The front faces of the jogs 3 and the front faces of the lintel-legs 8 are preferablyformed on an incline, as shown in Fig. 2, this giving a continuous upward-inward slope on which the door lies, thus 'causing the door to rest closely against the guides andseal the opening. A waterconnection isformed between.

one of, the legs 5 5 foru 'ardlyof ,the lintel andathe side cheek 2 of the door-frame,preferably by a U-shaped pipe 14, as shovm in Figs; 1 and 3, and water is preferably led into the other v side ol the hollow body portion? thence down through the opposite channel 11 1. {Tame-cheek;

are fastened to the bottom 3 these being secured to the.

lint-cl prevents the manner as the its use enables the weight of the i'ramo leg of the 'lintel by a pipe 15 extending down into open top of such leg.v

The water circulation is as Wardly irom p1 pe 15 thr follows: downo'ughone leg 8,

-5 across through the hollow lintel El, up through theotherleg 8, thence through the pipe H; I into the upper portion of the cheek oi the {rains .2, thence down through this check or leg to the lower cud of tho ba'lllo 'or partition [.6 10, thence up through the inner portion of the and through the channel llinio one 2o spacingblocks 1?, which are cored out and provided with trout recesses to receive the securingqiuts. These recesses are preferably larger than. the nuts to allow flpplltltlfill of a wrench for operating them i also proton :5 ablv provideierwardly pro ecting lugs 18 at thelbottom oi the checks or legs 2 and which ll of the dooro ening, and also side ribs 19, oxtending up along tho'legs :2 and projoctingforwardly, lu rzlr-staves ojl the furnace.

The advantages of my.

is separate and reinovablc iroin the water- 35 cooled. dcor-fraine, thus allowing for roplacing of the lintcl without injuring the 'lramo pro er and without stopping the operation oi tne furnace, also from theinterconnection between the lintel. and tho frame, by whicli'a s continuous circulation is maintained through the lintel and frame. The curved roof of the formation of a steampoekem'and the lintclmay' be easily rcniovod and renewed. It will bo noted that tho top of the doonfraine proper and tho lintel-legs are open, thus-allowing of any steam that may. ii anie.

the escape The top of the door may be closed,

. n vcnt-iini result E from the use/of the WzLtQT-UOQ1 l lintvl which i l l l l i l l l l l l l l i 1 l l l l tops of tho form inthe entire in which case it should be curved in the sumo l roof of the lintol and the con necting-pipc 14 lead vertically instead of" horizontally and be provided with a blow-oil valve." In such case the outlet-pipe should as the water connectionsbetween them, and many other lead through the closed top of the door to pro (hanges may be made in tllGlOll and arrangenient 'ol' the parts without departing .from my invention I claim-- 1. A water-cooled door-frame having hollow watcra'zoolod legs with closed lower ends, a removable \i'al'crwoolod lintel dctacbablv secured between the logs and water-virculating comiections between the lintcl and the legs whcreb' said logs connect through the lintel; substantiallyas described.

2. A door-frame having a hollow top portion with hollow depending legs, a hollow lintel extending across the top of the opening botween the legs, and connections for circulating water through the hotel and thedoorframe; substantially as described.

3. A nun-cooled door-frame having dcpcuding hollow legs with closed lower ends, atleast one oi said logs having a balllc arranged to give a return pass to the water, and a removable hollow lintel secured to the frame and having connections arranged to circulate the water from one leg threughsaid hotel to the other leg; substantially as described.

A (lOOF-lldfllfi having a hollow transverse top portion and hollow a hollow lintel extending across the o )ening below the upper part of the frame, and water connections between the lintel and the frame through both of said parts; substantially as dcscribml.

A-(lo( r-lra1uo having av hollow watercoolod lintol with a curved or inclined roof to prevent the formation of a steam-pocket therein; substantially as described.

A door-frame having'a removable hollow lintcl with a curved or inclined roof and 'opcn-tomied side logs, and means for circulating water thcrotlno'ugli; substantially as described.

7. A hollow Wltlel(t0()l(5(l door-frame and depending leg,

IOC

a hollow romovablc liutcl having hollow side logs forming a part thcreol, said parts being sounlml together by forwardly-projccting lug. I substantially as described.

A hollow \va-ter-(-,ooled door-frame with an open top, and a h'ollow miter-cooled lintcl roiuovably serurodthereto, having opentoppod side logs; substantially as described.

J. A hollow water-cooled door-frame with an open top, and a hollow water-cooled lintol rcmovablv secured thereto having opcntoppod'sidc logs, and water connections botwccn the door and lintol to continuous water circulation through parts; spbstantially as described. I

10. Ahollow water-cooled door-frame having an open top, and a hollow WilllGl'-(K)Ul0(l lint ol removably secured at tho u )pcr part of the' frame-opening; substantially as described.

11. A hollow watorcoolod door-frame having hollow legs with longitudinal inner bafboth provide for a iies projecting from the wall, whereby the 5 ing hollow logswith vertically-extending baf- Water contacts with the walls of the legs in fies therein, a removable hollow lintel, and

both the i1 and down portion of the circuit Water connections between the inner parts of I. substantial as described. the -framelegs, the lintel, and the hollow I5 5 12. A1101 0w Water-cooled door-frame hav frame-body; "substantially as described.

hollow legs with vertically-extending bef in testimony whereof I have hereunto set fies therein s id bafiles bein integral with-' my hand. v and projecting from the wal s to cause the LUTHER L. KNOX. water to contact with said walls in both the. 1 Witnesses:

1o lip and down pass substantially as described. 1 H. M.' (JORWIN, 1 3. Al1( ll wweter-c0oled doorri'rame hav-' JOHN MI L R. 

